well I actually study dreams. its common for dreams to incorporate sounds on the radio. They have no real meaning. They may appear randomly in dreams.. an alarm maybe become a bell or some other loud noise.. I once heard vernon kay tell a dream. He said that he has a recurring dream that he is in a french oral exam. The meaning is easy. Vernon kay is a dj and is continually being examined with regards to his oral skills.. he has to be clever with the words... so thats why he feels he is continually being tested